Cloud Infrastructure Engineer
Cloud Infrastructure Engineer
Fulltime | £43,918.00 - £51,238.00 (dependent on experience)
OSHQ - Southampton Hybrid
About OS
Join us in building the cloud platform that powers the geospatial data used across government, business, and everyday life.
Ordnance Survey is the national mapping agency for Great Britain, delivering worldclass geospatial data and services that underpin innovation and decision making across government, business, and everyday life. Our engineering teams build and operate the cloud platforms and tools that enable OS to deliver accurate, reliable data at scale — helping millions of people and organisations every day.
We’re passionate about using modern technology to make a meaningful impact, and we’re looking for engineers who share that enthusiasm.
Our Principles
At OS, how we work matters just as much as what we deliver. Throughout our hiring process we will assess competence assessing alignment in how you:
Clear the path – Cut the noise, simplify and remove blockers so work can move at pace
Seek the story – Listen fully, build understanding, fact‑check assumptions and speak up
Do what matters – Focus on value, make deliberate stop/start/continue decisions, and recognise the contribution of others
About the role
We are looking for a skilled Cloud Infrastructure Engineer to play a key role in designing and implementing Azure Landing Zones (ALZ) within a modern, enterprise-scale environment.
This is an exciting opportunity to help shape a secure, scalable, and compliant cloud platform, enabling teams to deliver services confidently and efficiently in Azure.
You will work across engineering, security, and platform teams to build reusable infrastructure patterns, automate deployments, and embed good practices aligned with Microsoft’s Cloud Adoption Framework.
Important:
Please note that due to the nature of this work - this role is conditional on holding or subsequently passing National Security Vetting SC Clearance prior to appointment.
Key Responsibilities
Develop and maintain Infrastructure as Code (IaC) using Bicep and Terraform
Automate platform deployments via CI/CD pipelines (Azure DevOps)
Configure and manage management groups, subscriptions, and governance controls
Maintain networking components including hub-and-spoke, Azure Firewall, and private connectivity
Embed security and compliance controls (e.g., RBAC, PIM, policies, Defender for Cloud)
Collaborate with security, operations, and application teams to onboard workloads
Troubleshoot platform issues and continuously improve reliability, governance and security
Management and security hardening of Virtual Machines using Desired State Configuration
Maintenance of centralised tooling to build Virtual Machine images using Image Builder / Packer.
Required Skills & Experience
Experience using Microsoft Azure
Knowledge of: Azure networking (vNets, DNS, Firewall, Private Endpoints)
Identity & access management (Entra ID, RBAC, PIM)
Governance (Azure Policy, Defender for Cloud, cost management)
Experience with Infrastructure as Code (Bicep or Terraform)
Familiarity with CI/CD pipelines and DevOps practices
Solid troubleshooting and problem-solving skills
Ability to write user friendly documentation for an engineering audience
Desirable
Hands-on experience with Azure Landing Zones or enterprise-scale cloud environments
Experience with Azure Landing Zone Accelerator or CAF implementation
Knowledge of security frameworks (NCSC guidance, CIS benchmarks, ISO 27001)
Scripting skills (PowerShell, Azure CLI, or Python)
Understanding of DNS, hybrid connectivity, or enterprise networking
Azure certifications (e.g., AZ-104, AZ-305, AZ-500, AZ-700)
Experience of Windows and Linux provisioning and security hardening.
What’s important to us
Competent use of source control and editors/IDEs
Good grasp of cloud computing principles
Passion for mentoring and sharing knowledge with others
Enthusiasm for learning new skills and staying up to date.
Thriving in an agile, collaborative environment
Find out more:
If you’d like to learn more about the role and the people with whom you’d be working, we are hosting two open sessions on Teams:
Session 1: Friday 26 June - 12:30-13:10
Session 2: Wednesday 1 July 17:30-18:10
These sessions are informal, completely optional, drop in when you can, and do not form part of the interview process. They are an opportunity to learn more and to ask questions. If you can’t make the whole session, feel free to join when you can. The sessions will not be recorded.
The Rewards
We want you to love what you do and feel supported to do your best work.
Our benefits include:
Competitive salary and pension (OS contribute up to 12.07%)
Performance‑related bonus (where applicable)
28 days annual leave plus bank holidays (increasing with service)
Enhanced family leave, including paid partner leave
Hybrid and flexible working options
Learning and development support, coaching and mentoring
Free subscription to OS Maps and access to wellbeing support
Volunteering leave and matched fundraising
Location:
We have a fantastic HQ in Southampton, and OS promotes Hybrid Working where you will be required to spend 50% of your working hours in person at HQ.
Interview Process
Stage 1 - Microsoft Teams Introduction (approx. 15mins) w/c 20th July 2026
Stage 2 – Competency based Interview (in person at OSHQ) w/c 27th July 2026
Security
Please be advised that this role will require additional security vetting.
OS conducts pre-employment checks for anyone made an offer of employment, including identity, right to work, employment history and criminal record checks (via Disclosure & Barring Services (DBS).
Closing date: Sunday 12th July 2026 at 23:59pm
Inclusion at OS
Research indicates that women, individuals with disabilities, LGBTQ+ community members, neurodiverse individuals, and people from ethnic minority backgrounds often hesitate to apply for jobs unless they meet every single qualification. At Ordnance Survey, we are dedicated to fostering a diverse, inclusive, and genuine workplace where everyone can thrive.
If you’re enthusiastic about this role but your experience doesn’t perfectly match every qualification in the job description, we encourage you to apply anyway. You might be the ideal candidate for this or other roles within Ordnance Survey.
We are happy to consider any reasonable adjustments that people may need during the recruitment process, and you will be asked whether you require any during the application process.
Skills required for this role:
Computer Coding, Computer Programming, Delivery Methodologies, Software Components, Software Development, Software Engineering, Troubleshooting